Although the Special Grade Refined Copper gear isn't sufficient for upgrading the 'Combat Angel - Valkyrie', it is the highest-grade copper material that Lin Xun can currently obtain.
The deeper he goes into the Puppet Factory, the more perverse the difficulty of the monsters within becomes.
His Earth Giant shell is of Epic+ quality and possesses a level 30 shell rank and two pieces of epic-grade equipment.
And that's not even considering the 60 percent power increase from the Sacred Objects.
Compared to the weak monsters he faced in the Teaching Building at the start, the difference is like night and day.
From this, it's evident that the difficulty of the hell-level chapters will increase linearly as he progresses through the game.
Lin Xun even starts wondering if he should have gone to the 'Polyvision School Association' or the 'Smelter Factory' first, given the game's progression.
Maybe the monsters at those two locations would have been a bit easier.
